How far is Billings, MT, from Unalaska, AK?

The distance between Unalaska (Unalaska Airport) and Billings (Billings Logan International Airport) is 2575 miles / 4144 kilometers / 2238 nautical miles.

Distance from Unalaska to Billings

There are several ways to calculate the distance from Unalaska to Billings. Here are two standard methods:

Vincenty's formula (applied above)

• 2574.941 miles
• 4143.967 kilometers
• 2237.563 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 2567.395 miles
• 4131.821 kilometers
• 2231.005 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Unalaska to Billings?

The estimated flight time from Unalaska Airport to Billings Logan International Airport is 5 hours and 22 minutes.

What is the time difference between Unalaska and Billings?

The time difference between Unalaska and Billings is 3 hours. Billings is 3 hours ahead of Unalaska.

Flight carbon footprint between Unalaska Airport (DUT) and Billings Logan International Airport (BIL)

On average, flying from Unalaska to Billings generates about 284 kg of CO2 per passenger, and 284 kilograms equals 626 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Unalaska to Billings

See the map of the shortest flight path between Unalaska Airport (DUT) and Billings Logan International Airport (BIL).

Airport information

Origin	Unalaska Airport
City:	Unalaska, AK
Country:	United States
IATA Code:	DUT
ICAO Code:	PADU
Coordinates:	53°54′0″N, 166°32′38″W

Destination	Billings Logan International Airport
City:	Billings, MT
Country:	United States
IATA Code:	BIL
ICAO Code:	KBIL
Coordinates:	45°48′27″N, 108°32′34″W